Grading-machine.



C. G. CARLBERG.

GRADING MACHINE. APPLICATION HLED sEPT.21.191e.

T E E H A. s T E E H S 5 www@ C. G. CARLBERG.

GRADING MACHINE.

APPLicATloN FILED sEPT.2l. i916.

l 228, S.. Intentw-lune 5, 19 7.

5 SHEETS-SHEET 2.

C. G. CARLBERG.

GRADING MACHINE.

APPLICATION FILED sPT.21. 1916.

Patented June 5, 1917.

5 SHEETS-SHEE 3.

' attouwq c. G. CARLBERG.

slmmwc MACHINE.

APPLICATIUN FILED SEPLZI, i916.

Paten-wd June 5, i917.

5 SHE'ETS-SHEET 5.

v aan saarne CARL GEORGE CARLBERG,

OF OMAHA, NEBRASKA.

GRADING-MACHINE.

assenso..

Specification of Letters Patent.

Patented ll une 5, 19117.

.lippneanon inea september 21, 191e. serial No. 121,391.

To all lwhom t 'may conce/rn:

13e it known that I, CARL Grenen QA'RL- mmc, a citizen of the UnitedStates, resldlng at Unialia, in the county of Douglas and State ofNebraska, have invented certain new and useful lmprovements inGradinglttlachines, of which the following is a specilic-ation.

This invention relates to an improvement in grading machines adaptedIfor use upon comparatively large areas of ground, and llas for one ofits objects to provide means :for plowing, scooping and elevating theground, said means being used and actuated in connection with the engineof a motor vehicle, the stresses for the most part being to showrelative position of parts when the scoop or scraper is elevated. Fig. 81s a vdetail to show means for shifting the carrier frame, being an endview of one of the cams, the shifting-bar being in longitudinal section.Fig. 9 s a detail relating to Fig` l for clearly showing certain gears.Fig. 1() is a detail showing a keyway and key re spectively for theoperating shaft and a sprocket wheel.

Referring now to the drawing, the invention is illustrated in connectionwith a vehicle which may be propelled by any Suitable power, astheengine shaft 1 adapted to ro tate the rear axle 2 since the engineshaft is provided with a gear wheel 3 (Fig. 2.) endirected substantiallyat right angles to thewglgng the gear wheel 4 of the line shaft 5,

line of travel so that the vehicle may be of comparatively light weight.y

The invention includes the combination with an engine-driven vehicle, ofa carrier frame mounted upon and adapted to have an intermittentmovement longitudinally thereof, an endless carrier provided with plowsand movable in a cycle transverse to the line of travel of the vehicle,an endless, inclined conveyer, and a scoop or scraper arranged toreceive the furrow slices from the plows, and to deposit the excavatedearth upon the conveyor. The invention also includes the use of aplurality of plows upon a carrier movable horizontally and adapted toengage in the ground at different depths, so that the stresses will notbe delivered coincidently when forming deep fur-rows.

The invention consists of the novel construction, combination andarrangement of parts as described herein and claimed, and as illustratedin the accompanying drawing, it being understood that changes in form,size. proportion and minor details may be made without departing fromthe invention, as determined by the appended claims.

In the drawing, Figure lis a view in side elevation of the gradingmachine. Fig. 2 is a view of the machine in longitudinal section, online 22 of Fig. 3. Fig. 3 is a plan view' of the machine, the driversseat, foot boards and upper part of the vehicle framel being removed.Fig. 4 is a transverse section through the carrier frame 0n line lr-t ofFig. 3. Fig. 5 is a transverse section through the carrier frame on lineof Fig. 3. Fig, 6 is a rear view of the machine.

Fig. 7 is a detail relating to Figs. 1 and Q,

said shaft 5 having bearings in the vehicle frame G and being providedat its rear end with the bevel gear 7 engaging a bevel gear 8 of thestub shaft 9 upon which is mounted a sprocket wheel 10, a sprocket chain11 being employed for engaging the wheel l0 and engaging a sprocketwheel 12 upon said rear axle.

In order that furrows may be formed substantially at right angles to theline of travel while the vehicle is moving forwardly, and to provide amounting for certain mechan ism for this purpose, a carrier frameis-provided'and shown herein as a platform 13. As best shown in Fig. 5,it is slidably mounted at its opposed sides in the side bars a of thevehicle frame, the tongues of the platform engaging in the grooves c ofthe side bars, this mounting operating to resist movements verticallybut permitting movements of said platform longitudinally of the vehicleframe.

In order that the platform or carrier frame may remain stationary whilethe plows engage the ground and while the veicle is moving forwardlysaid platform is provided with a pair of forwardly projectingshifting-bars 14, each being provided with a slot 15 (Fig. 8.). At 16(Fig. 3.) is indicated a transverse shaft upon which is mounted a pairof cams 17 each being provided with a tooth d (Fig. 8.). A rotatablemovement for the shaft 16 is provided by means of its bevel gear 18engaging the bevel gear-facing 19 of the spur gear 20 of the shaft 21,said shaft 21 and the gear 20 being rotated-by means of the spur gear 3of the engine shaft, the teeth (Z of the cams simultaneously kenteringthe slots 15 and engaging the yshifting bars 14 for moving the carrierframe forwardly.

At 22, near one of the sides of the vehicle,

is an operating shaft journaled in the vehicle frame and carrier frame,its front end being provided withl a bevel gear 23,' said shaft, betweenits ends, being provided with a keyway 24 (Fig. 10.) and upon said shaftis mounted a sprocket wheel 25,r its hub bef carrier frame, upon said-shaft, 27 being n y23 and being provided lwith a toothed gear' mountedan idler sprocketvvheel 28, a key` way and key, respectively, beingprovided for said shaft and sprocket wheel ksimilar to that yalreadydescribed for 'members 22and 25.

Mounted upon the sprocket wheels 25 and 28 is an endless carrierorsprocket chain 29, uponwhich arek mounted the plows 30,31 and 32, asuitable underframe 33 being pro vided with rollers 34 and disposedbelow and carried by the platform 13 forresisting stresses and'forfmaintaining the plows in the ground when they move below the platform. if The sprocket cha-ins move in the direction indicated bythevarrows shown in` Fig. 4, shaft 22 being rotated by operationy of thetransverse shaft 63 journaled in the front part of the vehicle frame,said shaft 63 having a miter gear 64 engaging the miter gear inengagement with the worm'66 of the engine shaft. ln'operation theyplatform 13 will be moved forwardly of the vehicle jby action of ythecams 17 as described, the plows then rbeing above the platform, and theparts are so proportioned and arranged vthat the plow 32 will enter theground when the platform 13 has completed its forward move-y ment. v

The plows, preferably, are of different sizes so that ay single furrowof considerablev depth may be formed at each complete rorbicularmovement of the endless carrier 29, the plows engaging differenthorizontal planes in the ground, this being of great advantage since thestresses will be lessy than the use of a single, comparatively largeplow in the formation of. a deep furrow; and it will be understood that,while the plows engage in the ground and while the vehicle is movingforwardly, the platform 13 will'remain stationary.

' Means are provided for removing and elevating thefurrow slices whichare formed by the plows, consisting, in part, of a scoop or scraper 35having a length substantially equal to the length of the furrows orplatform, said scraper being of angular form in lcross-section andconsisting of a forwardly projecting blade e and an inclined slide-platef. The ends of the plate f of the scraper are pivotally'mounted, asindicated at 36, upon the pair of brace-mcmbers or hangers 37 whichproject downwardly from the platform or carrier frame.

In order that'the scraper 35 may have a swinging movement fordepositingthe furrow slices uponthe endless, inclined conveyer 38 atintervals and immediately after eachL complete furrow has been formed,mechanism is providedy consisting, in part, of the pair of crankar1ns39mounted upon the transverse shaft 40 which has bearingsy in the carrierframe, a pair of links`4l being' 80 employed and pivotally connectedwith the.y f

f crank-arms and scraper 35. Mounted loosely upon the sha-ft 40 is, apinion 42 adapted to constantly engage the pinion 43, said pinion 42being under control of a clutch 44 having ak collar kg engaging in theygroove or track-k ywary it ofthe wheel 45, said'wheel 45 and' pin ion43being mounted on the shaft 46. y

Shaft 46 is provided at Aits inner end with a miter gear 47 inengagement with the ruiterk gear 48k of shaft 21. A rotatable movementfor shaft 21 is provided by means of its pin` ion 20 beingin engagementwith the'k pinion 4 as heretofore explained. Asbest shownr in Fig. k9-itwill be seen thatthe shaft 21 is provided with a keyway 49,the mitergear 48 being provided with a key 50 engaging in ysaid keyway, whichpermits the gear 48 to slide on the shaft 21 and permits the gears 48and 47 :to remain in engagement when the carrierk frame is shiftedforwardly of the vehicle.

Since the scraper is mounted upon -the d platform 13 rit will have amovement for- `vvardly kof the vehicle simultaneously withk the forwardymovement of all other partsy upon the platform, yincluding ,the plows.r

The parts are so proportioned and arranged for their movements that theblade e of the scraper 35 will be disposed adjacent to the plows, and inthe same plane as thebottom of the largest plow, when the plows engageinthe ground, the result being that the furrow slices formed by theplows 32,A 31 and 30 will be depositedl upon said' blade e while y theendless carrier 29 is moving in somewhat less than one half ofl itscycle.

As soon as the plows pass from the lower sidey of the platform, thecrank-arms 39 will swing in an arc substantially of 30 degrees toincline the plate f for cansingthe loose earth thus elevated to sliderearwardly and c downwardly upon the endless conveyor 38, said swingingmovement of member 35 being caused by the temporary engagement of thepinion 42 with the pinion 43, said pinion 42 eing under the control ofthe clutch 44 as explained. The groove or trackway l1, of the wheel 45has a suitable curvature for causing a comparatively rapid swingingmovement innata@ Y in an upward direction of the crank arms 39A to causethe loose earth to be discharged to the conveyer 38 and tothenimmediately swing downward to dispose the blade upon the excavatedart of the ground, as shown in Fig. 2, and uring the forward movement ofthe platform the blade e will slide upon that part of the ground fromwhich the earth has been removed and will operate to scrape the surfaceof the ground when slidin forwardly. 4

aving fully described the parts which effect the plowing, any furtherexplanatlon relating to their operation is not considered necessary.Since the furrows are formed transverse to the line of travel, thevehicle may be, comparatively of light weight, and therefore less thanordinary power will be required for operation.` lin the practical use ofthe invention, the speed at which the v ehicle may be driven is a'matter of no importance since the speed for the endless carrier 29 willcorrespond thereto. The plows, of course, may have any suitable width toform wide or narrow furrows.. The parts which lcontrol the movement ofmember 29 are so `the three plows to form the single, deep furrow, themiter ear 48 will remain 1n engagement with t e miter gear 4:7, the key50 sliding in the keyway 49 of shaft 21, the carrier frame or platformremaining stationary until the plow 32 has completed its furrow.

While any suitable construction may be provided for the conveyer 38, lhave shown and prefer to employ two endless belts m and n, each beingprovided with cross-strips. For moving the belts, a horizontal,transverse, rotatable shaft 51 is employed, saidy shaft having bearingsin the inclined frame 7c, and actuated by means of the rotatable shaft 9heretofore mentioned, the shaft `9 being provided with a miter gear 52in engagement with the miter gear 7, and a sprocket wheel 53 beingloosely mounted on shaft 9; also a sprocket chain 54 being provided andmounted upon the sprocket wheel 53 and upon a sprocket wheel 55 of shaft51. At 56 is indicated a shaft having bearings in the upper part of theframe la, said shaft being Vprovided with a sprocket wheel 57, and bymeans of a sprocket chain 58 in engagement with the sprocket wheel57`and a sprocket wheel 59 upon the shaft 51, the endless belt u may bemoved.

As best shown in Fig. 6,the bevel gear 7 of the driven shaft 5 isconstantly in engagement with the two bevel ears 8 andl 52, theengagement of said gear with the gear 52 causing the rotation of shaft 9upon which the sprocket wheel 53 is mounted for moving the belts m and nas above described,

and since the gear 8 is loosely mounted on shaft 9, its direction ofrotation will be reverse tothe direction of rotation of the will bedeposited upon the hopper and upon the belts to be conducted upwardly,and from thence to fall upon the inclined slide 61, this slide havingany suitable inclination and being disposed transversely of the vehicle.As shown in Fig. 2, idler shafts 62 may have bearings in the conveyerframe and may be provided with sprocket wheels or pulleys, as shown, tosustain stresses directed to the conveyer belts.

What l claim as my 'invention and desire .to secure by Letters'Patentis,-

1. A ading machine, comprising, in combinatlon with a forwardly movablevehicle, a carrier frame mounted upon and adapted to have anintermittent movement substantially parallel with the line of movementof the vehicle, a movable, endless carrier mounted upon and encirclingthe carrier frame, plows mounted on the carrier for forming furrowstransverse to the line of movement of the vehicle, an inclined conveyermounted on the vehicle, a scraper member mounted on the carrier framearranged to have a swinging movement in one direction for receiving thefurrow slices from the plows and to have a swinging movement 1n areverse direction for depositp ing the furrow slices upon the conveyer.

2.- A grading machine, comprising, in combination with a forwardlymovable vehicle, a carrier frame mounted upon and adapted to have anintermittent movement lon 'tudinally of the vehicle, a movable, en lesscarrier mounted upon and encircling the carrier frame, a plurality ofplows of varying dimensions mounted on the carrier and adapted to -bedisposed in alinement during a part of the movement of said carrier forforming furrows transverse to the line of movement of the vehicle anactuated, inclined conveyer on the vehicle, and a scraper member mountedon the carrier frame movable in one direction to receive the furrowslices when formed by the plows and movable in an opposite direction todeposit the furrow slices upon the conveyer.

3. A grading machine, comprisin in combination with an engine-driven vecle, .130

